Plate Tectonics
... properties of a solid but it can also flow A core – made of molten nickel and iron. Outer part is liquid and inner part is solid The average density of the Earth is much higher than the crust, so the inner core must be very dense ...
... properties of a solid but it can also flow A core – made of molten nickel and iron. Outer part is liquid and inner part is solid The average density of the Earth is much higher than the crust, so the inner core must be very dense ...
Name:______ Page:______ Read for understanding: Types of plate
... What is happening to the tectonic plates at a convergent boundary? ...
... What is happening to the tectonic plates at a convergent boundary? ...
3 Types Of Plate Boundaries And What They Create
... Strike-slip fault…. Earthquakes happen here ...
... Strike-slip fault…. Earthquakes happen here ...
Announcements - Western Washington University
... The earth’s crust is made of plates New crust is created at spreading centers Old crust is destroyed at subduction zones Plates move from spreading centers toward subduction zones and mountains, volcanoes, and earthquakes form by plate motion ...
... The earth’s crust is made of plates New crust is created at spreading centers Old crust is destroyed at subduction zones Plates move from spreading centers toward subduction zones and mountains, volcanoes, and earthquakes form by plate motion ...
PlateTectonics03
... Examples found on Earth: Himalayas, Ring of Fire, Andes Mountains, Marianas Trench ...
... Examples found on Earth: Himalayas, Ring of Fire, Andes Mountains, Marianas Trench ...
PLATE TECTONICS
... Wegener observed that 1) the coastlines of some continents fit like a jigsaw puzzle, and 2) similar fossils are found on opposite sides of the Atlantic. But he could not explain why continents would drift. • In 1959, Harry Hess proposed seafloor spreading: molten rock seeps up from the mantle ...
... Wegener observed that 1) the coastlines of some continents fit like a jigsaw puzzle, and 2) similar fossils are found on opposite sides of the Atlantic. But he could not explain why continents would drift. • In 1959, Harry Hess proposed seafloor spreading: molten rock seeps up from the mantle ...
Terrane Sta7ons: seismic tomography explains where the North
... • Terranes accreted to western NA margin between ～200 Ma and 50 Ma. • “…most of them display sedimentary and volcanic rock sequences that are of oceanic affinity rather than con)nental.” • Rela)vely you ...
... • Terranes accreted to western NA margin between ～200 Ma and 50 Ma. • “…most of them display sedimentary and volcanic rock sequences that are of oceanic affinity rather than con)nental.” • Rela)vely you ...
ES Plate Tectonicv2
... Pieces of outermost, rigid layer of the Earth (lithosphere) that move around on the softer layer of the mantle below (asthenosphere) ...
... Pieces of outermost, rigid layer of the Earth (lithosphere) that move around on the softer layer of the mantle below (asthenosphere) ...
Unit Three Review Guide: Plate Tectonics
... 2. How does the age of oceanic crust change the further it gets from the mid-ocean ridge? 3. Explain the relationship between normal polarity, reversed polarity, magnetic reversal, and the evidence for seafloor spreading. 4. What theory does ‘sea-floor spreading’ support? (hint: what is being moved ...
... 2. How does the age of oceanic crust change the further it gets from the mid-ocean ridge? 3. Explain the relationship between normal polarity, reversed polarity, magnetic reversal, and the evidence for seafloor spreading. 4. What theory does ‘sea-floor spreading’ support? (hint: what is being moved ...
Symposium in celebration of the work of Tony Watts University
... 9:15-10:45 Marcia McNutt, US National Academy of Sciences Plate flexure and mantle rheology Paul Wessel, University of Hawai`i at Manoa ...
... 9:15-10:45 Marcia McNutt, US National Academy of Sciences Plate flexure and mantle rheology Paul Wessel, University of Hawai`i at Manoa ...
Plate tectonics/volcanoes
... 16. Compare and contrast convergent and divergent plate boundaries. Give an example of each. 17. At a mid ocean ridge, where are the youngest rocks found? The oldest? 18. What does seafloor spreading cause? 19. Where do most earthquakes and volcanoes occur? Why? 20. Explain how volcanic island arcs ...
... 16. Compare and contrast convergent and divergent plate boundaries. Give an example of each. 17. At a mid ocean ridge, where are the youngest rocks found? The oldest? 18. What does seafloor spreading cause? 19. Where do most earthquakes and volcanoes occur? Why? 20. Explain how volcanic island arcs ...
Ocean Topography
... • An underwater mountain range, typically having a valley known as a rift running along its spine, formed by plate tectonics. It is usually an oceanic spreading center, which is responsible for seafloor spreading. ...
... • An underwater mountain range, typically having a valley known as a rift running along its spine, formed by plate tectonics. It is usually an oceanic spreading center, which is responsible for seafloor spreading. ...
OCEAN BASIN FLOOR - ES-Emerald(2010
... The OCEAN BASIN FLOOR lies between the continental margin and the oceanic ridge. ...
... The OCEAN BASIN FLOOR lies between the continental margin and the oceanic ridge. ...
Plate Boundaries - Waukee Community School District Blogs
... A continental plate is simply too buoyant to subduct under an oceanic plate. ...
... A continental plate is simply too buoyant to subduct under an oceanic plate. ...
Print › 8th Grade STAAR Plate Tectonics and Topo Maps
... that existed about 225 million years ago. ...
... that existed about 225 million years ago. ...
Continental Drift – hypothesis that states the continents were once
... Evidence supporting Continental Drift a) Continental Puzzle – continents fit together b) Matching Fossils matching fossils (Mesosaurus) on cross ocean landmasses c) Mountain chains and rock type – (Appalachian) ...
... Evidence supporting Continental Drift a) Continental Puzzle – continents fit together b) Matching Fossils matching fossils (Mesosaurus) on cross ocean landmasses c) Mountain chains and rock type – (Appalachian) ...
Eighth Grade ScienceEarth`s HistoryStudy Guide
... 6. What is subduction? When one plate goes under another plate and it is melted back into the mantle. 7. The Earth’s plates are made of what layer(s)? inner core, outer core, mantle (asthenosphere—upper mantle), crust (lithosphere) 8. Explain convection currents. Fluids when heated become less dense ...
... 6. What is subduction? When one plate goes under another plate and it is melted back into the mantle. 7. The Earth’s plates are made of what layer(s)? inner core, outer core, mantle (asthenosphere—upper mantle), crust (lithosphere) 8. Explain convection currents. Fluids when heated become less dense ...
Study Guide - Answers
... plate move under another. b. Crack in the center of a mid-ocean ridge. c. Supercontinent formed about 300 million years ago. d. Process by which new sea floor forms. e. Layer that forms the thin outer shell of Earth. f. Cycle in which heated material rises and ...
... plate move under another. b. Crack in the center of a mid-ocean ridge. c. Supercontinent formed about 300 million years ago. d. Process by which new sea floor forms. e. Layer that forms the thin outer shell of Earth. f. Cycle in which heated material rises and ...
Plate Tectonics
... The Earth isn’t getting bigger the crust is being recycled New crust is made at spreading centers and old crust is destroyed at subduction zones ...
... The Earth isn’t getting bigger the crust is being recycled New crust is made at spreading centers and old crust is destroyed at subduction zones ...
Plate Tectonic, Earthquakes, and Volcanoes Test Review
... Continental Drift—only the continents are drifting/floating on top of the ocean floor. No explanation of why or how it moves. Earliest theory. Plate Tectonics Theory—Tectonic plates, including both continental and oceanic crusts, are moving because of convection currents below the crust. New crust i ...
... Continental Drift—only the continents are drifting/floating on top of the ocean floor. No explanation of why or how it moves. Earliest theory. Plate Tectonics Theory—Tectonic plates, including both continental and oceanic crusts, are moving because of convection currents below the crust. New crust i ...
Theory of Plate Tectonics
... upper mantle are broken into sections called plates Plates move around on top of the asthenosphere like ships ...
... upper mantle are broken into sections called plates Plates move around on top of the asthenosphere like ships ...
Plate Boundaries
... d. Magma rises forming a magmatic arc with the continent (rather than a island arc). e. Andesitic volcanism occurs f. Beneath the volcanoes are large plutons in thickened crust, seen on land as batholiths when exposed by extensive erosion ...
... d. Magma rises forming a magmatic arc with the continent (rather than a island arc). e. Andesitic volcanism occurs f. Beneath the volcanoes are large plutons in thickened crust, seen on land as batholiths when exposed by extensive erosion ...
Plate Tectonics Continental Drift
... • More dense ocean sinks beneath the less dense continent • Descending plate melts • New magma rises back up creating volcanoes • Creates Continental Volcanic Arcs – Ex: Andes Mountains (caused by subduction of Nazca plate beneath the South American Plate) ...
... • More dense ocean sinks beneath the less dense continent • Descending plate melts • New magma rises back up creating volcanoes • Creates Continental Volcanic Arcs – Ex: Andes Mountains (caused by subduction of Nazca plate beneath the South American Plate) ...
PLATE TECTONICS
... Rock type and structural similarities. In order for a jigsaw puzzle to make sense, the colors and textures of adjacent pieces have to match. Rocks in northwestern Africa match those of eastern Brazil. The Appalachian mountains match mountains in northern Europe just as rock type and structure on a ...
... Rock type and structural similarities. In order for a jigsaw puzzle to make sense, the colors and textures of adjacent pieces have to match. Rocks in northwestern Africa match those of eastern Brazil. The Appalachian mountains match mountains in northern Europe just as rock type and structure on a ...
Oceanic trench
The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They are also the deepest parts of the ocean floor. Oceanic trenches are a distinctive morphological feature of convergent plate boundaries, along which lithospheric plates move towards each other at rates that vary from a few mm to over ten cm per year. A trench marks the position at which the flexed, subducting slab begins to descend beneath another lithospheric slab. Trenches are generally parallel to a volcanic island arc, and about 200 km (120 mi) from a volcanic arc. Oceanic trenches typically extend 3 to 4 km (1.9 to 2.5 mi) below the level of the surrounding oceanic floor. The greatest ocean depth to be sounded is in the Challenger Deep of the Mariana Trench, at a depth of 11,034 m (36,201 ft) below sea level. Oceanic lithosphere moves into trenches at a global rate of about 3 km2/yr.